document.write( "Question 150039: Choose the ordered pair that is a solution to the system of equations. \r
\n" ); document.write( "\n" ); document.write( "3x - y = 10
\n" ); document.write( "-x + y = -4
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Algebra.Com's Answer #110143 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
1.\"3x-y=10\"
\n" ); document.write( "2.\"-x%2By=-4\"
\n" ); document.write( "Multiply eq. 2 by 3,
\n" ); document.write( "2.\"3%28-x%2By%29=3%28-4%29\"
\n" ); document.write( "2.\"-3x%2B3y=-12\"
\n" ); document.write( "Add to eq. 1 and have an equation in only y.
\n" ); document.write( "\"3x-y%2B%28-3x%2B3y%29=10-12\"
\n" ); document.write( "\"2y=-2\"
\n" ); document.write( "\"y=-1\"
\n" ); document.write( "Use eq. 2 to solve for x.
\n" ); document.write( "2.\"-x%2By=-4\"
\n" ); document.write( "\"-x-1=-4\"
\n" ); document.write( "\"-x=-3\"
\n" ); document.write( "\"x=3\"
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\n" ); document.write( "(\"x\",\"y\")=(\"3\",\"-1\")
\n" ); document.write( "with graphic proof of the intersection.
\n" ); document.write( "\"+graph%28+300%2C+300%2C+-5%2C+5%2C+-5%2C+5%2C+-4%2Bx%2C+3x-10%29+\"
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